I use my Raspberry Pi with Kodi on it (probably one of the last version with both a Pi 2 and 3).

A few months ago, I bought and HDMI extractor so that I could use my Home Cinema using the Passthrough option in Kodi. It was working perfectly, in the sense that whenever I wanted to switch on the Raspberry Pi, I could leave the HDMI cable of the extractor plugged in.

For the last few months though, every time I want to switch on the Pi, I first need to unplug the HDMI cable of the extractor (which is connected to the Pi) and connect directly the Pi to the TV, and then plug the extractor in between.

I initially thought it could be because of an update in Kodi. Then I thought it could be because the power supply was not powerful enough. So I bought an official one, but the problem remains.